Question

In thg given figure, there is a circular truck with outer redius 10.5 m and inner
radius m.
Find a) The cost of leveling the track at Rs 24 per m²
bThe cost of putting a fence around the outer edge at Rs 35 per mette.
How long willa boy take to go four times round a circular field whose diameter
is 140 m, walking 4 km/h?
A square board is of size 14 cm. What is the circumference of the circle that can
be cut out of it?​

Answer 1

Answer:

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Step-by-step explanation:

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